I've never ran my bow through a chrony, have really no need to...
I'll say...I'm shooting a bow that is at least 15 years old, no longer made, 44 inch axle length and 32 inch 2413 arrows with 125s on the tip...
It's gotta be slow, but deer doen't duck the arrow so what does it matter...
If I wanted to shoot something that was 300fps and noisy...I'd shoot a cross bow...